Bug Description

Undo (Ctrl-Z) does not work in the comments field after downloading metadata. If it did, it would be a way to restore comments that were overwritten in a metadata download--for instance, if one decides after downloading that the original comment content was preferable to the newly downloaded. Or if someone would like to merge new and old comments, he could copy the new comment, undo to restore the old, and then paste the new back in.